Locking device



M. M. GRUBER LOCKING DEVICE medA Feb. 21,` 192s Patented Apr; 24,1928;l

` :idafptecljand for usefoh "l eulutl,turntable v4Spindle of u phonograph n `Moreparticularly, this invention hug for its object the provision' of Iii-ezine whereby onejfoor a plurality` ofphonogrziph records, may besupportedwf ponjthetuifktuble und looked njpositioy'theeon topei'nii easy Shipment o1' caifiying. o 4Th inyention is purl tclarly Lippliabls t Portable" phon@- gijnphs, which kare `niolilitel in carrying" osg, Pemttng 0f af Substantial number! 0f it@ orlsy being placlze'l` upon'` the turntable nd locked lirlnly in position. fj

'carried within the oarsejprovded r-they It is an objeetof lthi inuention'to vpropextension so that fa laige number ot records y Vide ,the usual phonographspindle orv similar articles `may be inountecl thereon.

115.19 u further objeotof this'inxelition to provide a melnbei which is 'glidabl'e upon Suid extension of theusual 'pfi nogreph spindlelso that it muylvoontiot with the up] i*- moStreooL-cl und then be looln-wl 'in poeition on Suid spindle, to pi'eveiit axial, movement of said reoordu. 'lbefiieeoiwlo will:bellnount` ed, of course, on theL `nelle exte'nqion 'und thushelcl against lzitelfulpmovement.` `,It is a yirtlyie object ofthifsini'fei n provide, u Contact meinberiind locking'ineans theiefor, as set forthinthepreeeclingfpl'uT graph, Which can lbe readily unlooked and dirsniountecl'Without .the use ofto'ols oi" appa; mtusof anyfkind. o

QWitll these and. otherfobjeets inviewl, `to boomer@ fully set forthfheieinuifger,,theinvolition consists in the `novel)Construction, Combination of elements. 1nd Valrrui-ngenjient of parts Whehfwllh beoexelnplified inthe .opertion andionstruotion 'l1j e e1m:f:te1fle scribed in `the* following.V speoification ,und illustlad in 'the aocolnpanving ,nl lnfwiligs, @ons,ideredtogetherJ 0r :Sep ,e152

i @Evian un artid@ "throughout the seeviil vieu tion, ll' WlieieinY "Similar, o `referente bhaifzloters an used to lolesiguute ooifrlxepoutling puits o und then ni Specifically clenefl und iniliifufed inthe'fzipf pen vdeclf elai ine." o o l "While thevfinventioii will be described Vin connection ,Withgl'w king plionogiziph leoorglg upon o `tlvirn-tzible, tfivill ,beA obvious `as 'the tlelsoriptlion pioeedgthutany *arti/cle" ori :i plu'zility of' articles `any other ,decjriptioin hay be looked; upoli `supportngfplutfornl in, Similar inunn'erby the'use of `the vsaine device-` L .l 'i .In the aooolnpgijnyiug d,1fwings,`

flg.. lis 'a plan ,View of `al oitable phonograph' showing the @over in open `position und hui/ing niy invention applied theieto.

f2. is` siclef'xfmw withfpnits broken Hwy of the de'lce Shown iu'ligfl. w llgff :i plan View of tlielevieelembgnlying myinvention. i

Fig. el` is :i `vei'tljehl disusselnblodTfiew olErl Y v `the spindle extension und the contact member und vlooking )nons mounted tlleijeon.

. Referring `to the drmvings,'tl1ere is Shown L poituble `pholliograph `eom'prising a euse l0 having a, Lhingel'frontll, adapted to be rlet down hwhen the phonograpl'i is in usejto expose the amplifier,- andy having "va` ,Cover l12 Which,- When vvlifted, exposes the turn-table and tone arm." Thephonograph is opeizited by ai-spring motor (not shown) Within the easing, said niotoi beingwound by the usual vhandle 13 Aextendingoutsideof the easing. Vithin the ozxrselis Ashown -a `motorbo1rd ll5A through xivhiohextenda spindlel upon Avvh'iehl` mou.tiltedv @turn-table `17 adapted to eairy the ieeortl to beplayel. The "usual ,tone a1^1n--20l is ,piyoted none corner of the Vlo reproducer 22 and stylus 23. When the tone arm is in ineifective position, it is at one side of the case 10 substantially clear of and above the turn-table 17, so that a plurality of records may be piled upon the turn-table without interfering with the closing of cover 12, when the device is tobe carried.

The plurality of records to be carried may be mounted on an extension of spindle 16, said extension being in the form oi' a rodl 25 similar toV said spindle 16 and provided at its lower end witha threaded steinV 26 adapted to fit into a threaded bore 27 in the upper end of the spindle 16 to lock said extensionV firmly to said spindle.

It is apparent that unless the records were held against movement axially of said spindle and its extension, theyV would iall olj and probably be broken within the carrying case, as well as probably'injure the reproducer and the tone arm. To lock the records upon the spindle, I provide a contact member 30 in the form of a plate which may be of any desired and suitable diameter, preferably corrugated, as shown at 31, and giving'ainaximum of strength to the plate which is preferably made of thin metal. The plate 30fis slid down the spindle extension'until it contacts with the uppermost record. Means are now provided for locking the contact plate against axialmovement until it is desired to release the records. For this purpose, there are provided leaf springs 35, 36 iiXed at their outer ends to the underside of the contact plate as at 37 and having their 'free ends in engagement with the spindle extension 25. A collar having a spindle knob 39 at its upper end extends centrally through the plate and is slidable upon said spindle extension 25. Said collar 38 is provided with slits through which eX- tend the free inner ends ot leaf springs 35, 36, so that said collar in eilect carries said inner ends which are slidable in and out oi't said slots. The springs are of such length that they incline slightly upwardly toward the spindle extension 25, so that they bear downwardly on said spindle surfacey and grip the spindle between their inner ends. To break the trictional engagement between said springs and the spindle, the knob 39 and collar 38 are pulled upwardly to -raise the inner ends of leaf springs 35 and 36 out of engagement with said spindle, so that the sleeve and its attached contact plate may be slid freely along' the spindle extension 25. In this manner, it may be slid completely off the spindle extension to permit removal of the records or it may be slid to any other position on said spindle extension, and b v releasing knob 39 the leaf springs 35 and 36 areagain moved downwardly into Jfrietional engagement with the spindle eXtension It 1s thus apparent that the knob may be moved by the lingers of one hand,

certain of the ingers pressing against the plate while the other fingers pull upon the knob.

In accordance with the provisions of the patent statute, I have described the principle of my invention together with the apparatus which I now consider to represent the best embodiment thereof, but I desire it understood1 that my invention is not coniined to theV particular` form of apparatus herein shown and described, the same being merely illustrative, and ythat the invention can be carried out in other ways without departing from thekspirit of my invention, and, therefore, I claim broadly the right to employ'all equivalent instrumentalities coming withinthe scope ofv the appended claims, and by means of which the objects ot' my invention are attained, and the new results accomplished, as herein set forth, as it is obvious that the particular embodiments herein shown and described areV only some of many that can be employed to attain these objects and accomplish these results. y

Having now described my invention, what I claim and desire to securefby.Letters'Patent, is f y x 1. In a device oi the ycharacter described, a record support, a spindle projecting beyond said support and'adapted toitranstix disk phonograph records by their `central orifices, a record securing plate slidable yalong said y spindle, Va plurality of spring slioesengaging said spindle at their inner ends and securedv at their outer ends to said disk, and means to flex said spring shoes to draw,r their inner ends out of Contact with said spindle. l

2. In a device of the character described, a record support, a spindle projecting beyond said support and adapted to transix disk phonograph records by their central orifices, a. record securing plate provided with a central collar slidable, upon the surface oisaid spindle, a pair ot' leaf springs secured at their outer ends to said plate, and

passing through slits in said' collar to engage said spindle with Atheir inner ends` said collar having a sliding "movement relative lo said plate, whereby movement oi the collar relative to the platemay flex said springs to move them out of engagement with said spindle.

3. In a device of the character described, a record support, a spindle projecting beyond said support and adapted to transfix disk records by their central orifices, a collar slidable upon said spindle, said collar being provided with radially arranged, inwardly projecting, upwardly slanting slits eXtending through the wall of said collar, spring members each having its inner end positioned in one of said slitsV and its outer end extending radially'from said collar and secured at its extremity to a record securing ends of said spring members positioned in the slits of said collar will be pressed against said spindle by kat movement in one direction f of seid coller and drawn ontoffcontact with l0 ysaid spindle by the reversemovement ofsaid collar, thus permitting said plate to ybe locked'to said spindle by relative movement of said collar tosaid plate.

This specification signed this 9th day of 15 February, 1923.

` Y MORRIS M. GRUBER. 

